Home / 14,981.68-20,665.99-9,602.20

Finding the Fourth Proportional to 14,981.68, 20,665.99 and 9,602.20

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Solution

The fourth proportional to 14,981.68, 20,665.99 and 9,602.20 is: 13,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.68 : 20,665.99 = 9,602.20 : x
  2. Step 2: Convert to fraction form
    14,981.68/20,665.99 = 9,602.20/x
  3. Step 3: Cross multiply
    14,981.68x = 20,665.99 × 9,602.20
  4. Step 4: Simplify right side
    14,981.68x = 198,439,092.14
  5. Step 5: Solve for x
    x = 198,439,092.14/14,981.68
  6. Step 6: Final answer
    x = 13,245.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.